JPS6133397B2 - - Google Patents
Info
- Publication number
- JPS6133397B2 JPS6133397B2 JP13990879A JP13990879A JPS6133397B2 JP S6133397 B2 JPS6133397 B2 JP S6133397B2 JP 13990879 A JP13990879 A JP 13990879A JP 13990879 A JP13990879 A JP 13990879A JP S6133397 B2 JPS6133397 B2 JP S6133397B2
- Authority
- JP
- Japan
- Prior art keywords
- restraint
- sleeve
- primary
- pipe
- coolant pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002826 coolant Substances 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Description
【発明の詳細な説明】
この発明は加圧水型原子炉原子力発電プラント
の１次冷却材管の１次遮蔽貫通スリーブ内に設置
し、１次冷却材管破断時の配管変位を拘束する装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device installed in a primary shield penetrating sleeve of a primary coolant pipe in a pressurized water reactor nuclear power plant to restrain piping displacement when the primary coolant pipe breaks. It is.
１次冷却管１次遮蔽貫通スリーブ内に設置され
る従来の配管変位拘束装置（以下、レストレイン
ト装置という）は第１及び２図に示すように、１
次冷却材管１が１次遮蔽壁２を貫通する部分にお
ける貫通スリーブ３内に設置されるレストレイン
ト４からなり、レストレイント４は調整のため打
設されるグラント５によつてスリーブ３に固着さ
れ、レストレイント取付部付近は１次冷却材管１
の一般部に取付けてある保温材６を切断してあ
る。また１次冷却管１とレストレイント４との間
には、１次冷却材管の熱膨脹を吸収する目的で隙
間７を設けているがレストレイント４の取付けが
保温材６を取付ける前に行なわれる事になり、保
温材６を１次冷却材管１に取付けた後は、保温材
６が視界をさえぎるため隙間７が適正であるか否
かの確認は困難であつた。 A conventional piping displacement restraint device (hereinafter referred to as a restraint device) installed in the primary cooling pipe primary shield penetrating sleeve is as shown in Figures 1 and 2.
It consists of a restraint 4 installed in the penetration sleeve 3 at the part where the secondary coolant pipe 1 penetrates the primary shielding wall 2. is fixed to the primary coolant pipe 1 near the restraint attachment part.
The heat insulating material 6 attached to the general part of is cut. Furthermore, a gap 7 is provided between the primary cooling pipe 1 and the restraint 4 for the purpose of absorbing thermal expansion of the primary coolant pipe, but the restraint 4 is installed before the heat insulating material 6 is installed. After the heat insulating material 6 was attached to the primary coolant pipe 1, it was difficult to confirm whether the gap 7 was appropriate because the heat insulating material 6 blocked the view.
また構造が複雑であるため据付けが容易でなか
つた。更に、機械的にもレストレイント４の剛性
が高く多大な衝撃荷重が加わる結果となつてい
た。 Furthermore, the structure is complicated, so installation is not easy. Furthermore, mechanically, the rigidity of the restraint 4 was high, resulting in the application of a large impact load.
この発明はレストレイントの機能を満足させる
と同時に、据付調整及び隙間の確認を容易に行な
うことのできるレストレイント装置を提供するこ
とを目的とし、従来技術の装置に比べて機能、施
工性並びに構造設計が有利に実施できるレストレ
イント装置を提供することを目的とするものであ
る。 The purpose of this invention is to provide a restraint device that satisfies the function of the restraint and at the same time allows for easy installation adjustment and gap confirmation. Another object of the present invention is to provide a restraint device that can be advantageously designed in structure.
この目的に対応して、この発明の原子炉容器入
口ノズル部１次冷却材管レストレイント装置は１
次遮蔽貫通スリーブ内側に固定されたスリーブ側
レストレイントと、前記１次遮蔽貫通スリーブ内
に挿通された１次冷却材管に固定され、かつ、前
記スリーブ側レストレイントの前記１次冷却材管
側端面との間に１次冷却材管の熱膨脹を吸収する
ための隙間を保持して対向する配管側レストレイ
ントとにより構成したことを特徴としている。 Corresponding to this purpose, the reactor vessel inlet nozzle primary coolant pipe restraining device of the present invention has one
a sleeve side restraint fixed to the inside of the secondary shielding penetration sleeve; and a primary coolant of the sleeve side restraint fixed to the primary coolant pipe inserted into the primary shielding penetration sleeve; It is characterized by comprising a pipe-side restraint that faces the pipe-side end face while maintaining a gap for absorbing thermal expansion of the primary coolant pipe.
以下に、図示する実施例に関してこの発明を具
体的に説明する。 The invention will now be described in detail with reference to illustrated embodiments.
第３及び４図に示すように、この発明において
はレストレイント装置を配管側レストレイント１
１及びスリーブ側レストレイント１２に分離し、
配管側レストレイント１１とスリーブ側レストレ
イント１２との間に１次冷却材管１の熱膨脹変位
を吸収するための隙間１４を設ける。配管側レス
トレイント１１は４枚の厚板を１次冷却材管１の
円周上４個所にバンド１３で固定する構造であ
り、厚板に形状及び取付け方向は１次冷却材管１
の強度及び１次冷却材管１の局部剛性並びに破断
時の１次冷却材管１のホイツプ方向を考慮し決定
される。また、１次冷却材管１からの突出し高さ
（すなわち、半径方向の長さ）は保温材６の厚み
より大きくとる。 As shown in FIGS. 3 and 4, in this invention, the restraint device is installed on the piping side restraint 1.
1 and sleeve side restraint 12,
A gap 14 is provided between the piping-side restraint 11 and the sleeve-side restraint 12 for absorbing thermal expansion displacement of the primary coolant pipe 1. The piping side restraint 11 has a structure in which four thick plates are fixed at four locations on the circumference of the primary coolant pipe 1 with bands 13, and the shape and installation direction of the thick plates are the same as that of the primary coolant pipe 1.
It is determined by considering the strength of the primary coolant pipe 1, the local rigidity of the primary coolant pipe 1, and the whip direction of the primary coolant pipe 1 at the time of rupture. Further, the height of the protrusion from the primary coolant pipe 1 (that is, the length in the radial direction) is set to be larger than the thickness of the heat insulating material 6.
スリーブ側レストレイント１２は、１次冷却材
管１に配管側レストレイント１１が取付られた
後、配管側レストレイント１１とスリーブ３との
隙間を測定し１次冷却材管１の熱膨脹変位を考慮
し通過運転時に適正な隙間となる様半径方向の長
さを決定する。更に、配管破断時のレストレイン
トに加わる荷重が極力小さくなる様部材寸法（板
厚及び配管軸方向長さ）の最適化を計りスリーブ
３に設置されるものである。 After the pipe-side restraint 11 is attached to the primary coolant pipe 1, the sleeve-side restraint 12 measures the gap between the pipe-side restraint 11 and the sleeve 3, and measures the thermal expansion of the primary coolant pipe 1. Considering displacement, determine the radial length to provide an appropriate gap during passing operation. Furthermore, the dimensions of the members (plate thickness and length in the axial direction of the pipe) are optimized and installed in the sleeve 3 so that the load applied to the restraint when the pipe breaks is minimized.
以上の説明から明らかなようにこの発明は従
来、一体型であつたレストレイント４を配管側レ
ストレイント１１とスリーブ側レストレイント１
２とに分離することにより次の効果が得られるも
のである。 As is clear from the above description, the present invention replaces the conventionally integrated restraint 4 with a piping side restraint 11 and a sleeve side restraint 1.
By separating the two, the following effects can be obtained.
(1) レストレイントの据付け調整が行い易い
(2) １次冷却材管の熱膨脹変位を吸収する為の隙
間を保温材の外側に設けることができ温態機能
試験（１次冷却材管熱膨脹測定試験）時におい
ても隙間が適正であるか否かの確認ができる。(1) It is easy to install and adjust the restraint. (2) A gap can be provided on the outside of the insulation material to absorb the thermal expansion displacement of the primary coolant pipe. It is possible to check whether the gap is appropriate even during measurement tests.
(3) 配管側レストレイントの部材断面とスリーブ
側レストレイントの部材断面を効果的に変えら
れること（レストレイントの剛性を小さくする
為の調整が行い易い。）により配管破断時レス
トレイントに加わる荷重を低減できる。(3) The cross section of the piping side restraint and the sleeve side restraint can be effectively changed (easier to make adjustments to reduce the rigidity of the restraint), which reduces the restraint in the event of piping rupture. can reduce the load applied to the
(4) スリーブ側レストレイントの部材形状を小さ
くすることによりスリーブ内におけるレストレ
イントの占める割合を減少させ、すなわち配管
破断の際、破断口から噴出する流体に対してレ
ストレイント部での抵抗を小さくでき流体が蒸
気発生器室に流れ易くなり原子炉容器まわりの
圧力上昇を低減できる。(4) By reducing the shape of the sleeve-side restraint member, the proportion of the restraint in the sleeve is reduced.In other words, when a pipe ruptures, the restraint part is able to handle the fluid ejected from the rupture port. Resistance can be reduced, fluid can easily flow into the steam generator chamber, and pressure rise around the reactor vessel can be reduced.
第１図は従来のレストレイント装置を示す第２
図の線――に沿う縦断面図、第２図は第１
図のレストレイント装置の横断面図、第３図はこ
の発明のレストレイント装置の第４図の線―
―に沿う縦断面図、第４図は第３図のレストレ
イント装置の横断面図である。
１……１次冷却材管、２……１次遮蔽壁、３…
…１次遮蔽貫通スリーブ、４……レストレイン
ト、５……グラウト、６……保温材、７……隙
間、１１……配管側レストレイント、１２……ス
リーブ側レストレイント、１３……バンド、１４
……隙間。
Figure 1 shows a conventional restraint device.
A vertical cross-sectional view along the line in the figure, Figure 2 is the first
3 is a cross-sectional view of the restraint device of the present invention, and FIG. 3 is a line of FIG.
4 is a cross-sectional view of the restraint device of FIG. 3. 1...Primary coolant pipe, 2...Primary shielding wall, 3...
...Primary shielding penetration sleeve, 4...Restraint, 5...Grout, 6...Insulating material, 7...Gap, 11...Piping side restraint, 12...Sleeve side restraint, 13... ...Band, 14
……gap.
Claims (1)
ブ側レストレイントと、前記１次遮蔽貫通スリー
ブ内に挿通された１次冷却管に固定され、かつ、
前記スリーブ側レストレイントの前記１次冷却材
管側端面との間に１次冷却材管の熱膨脹を吸収す
るための隙間を保持して対向する配管側レストレ
イントとにより構成したことを特徴とする原子炉
容器入口ノズル部１次冷却材管レストレイント装
置。a sleeve-side restraint fixed to the inside of the primary shield penetrating sleeve; and fixed to a primary cooling pipe inserted into the primary shield penetrating sleeve, and
A piping side restraint is configured to maintain a gap between the sleeve side restraint and the primary coolant pipe side end face to absorb thermal expansion of the primary coolant pipe, and the sleeve side restraint faces the pipe side restraint. Reactor vessel inlet nozzle primary coolant pipe restraint device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13990879A JPS5664696A (en) | 1979-10-31 | 1979-10-31 | Restraint device for primary coolant tube in reactor container inlet nozzle portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13990879A JPS5664696A (en) | 1979-10-31 | 1979-10-31 | Restraint device for primary coolant tube in reactor container inlet nozzle portion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5664696A JPS5664696A (en) | 1981-06-01 |
| JPS6133397B2 true JPS6133397B2 (en) | 1986-08-01 |
Family
ID=15256424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13990879A Granted JPS5664696A (en) | 1979-10-31 | 1979-10-31 | Restraint device for primary coolant tube in reactor container inlet nozzle portion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5664696A (en) |
-
1979
- 1979-10-31 JP JP13990879A patent/JPS5664696A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5664696A (en) | 1981-06-01 |
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